package dmp.hbase.dao.impl;
import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.MasterNotRunningException;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.ZooKeeperConnectionException;
import org.apache.hadoop.hbase.client.Delete;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.util.Bytes;

 

public class SimpleHBase {

 public static void main(String[] args) {
  Configuration configuration=HBaseConfiguration.create();
  String tableName="student";
  createTable(configuration, tableName);
//  addData(configuration, tableName);
//  getData(configuration, tableName);
//  getAllData(configuration, tableName);
//  deleteDate(configuration, tableName);
//  dropTable(configuration, tableName);
  
 }
 
 /**
  * create a new Table
  * @param configuration Configuration
  * @param tableName String,the new Table's name
  * */
 public static void createTable(Configuration configuration,String tableName){
  HBaseAdmin admin;
  try {
   admin = new HBaseAdmin(configuration);
   if(admin.tableExists(tableName)){
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
    System.out.println(tableName+"is exist ,delete ......");
   }
   
   
   HTableDescriptor tableDescriptor=new HTableDescriptor(TableName.valueOf(tableName));
   tableDescriptor.addFamily(new HColumnDescriptor("info"));
   tableDescriptor.addFamily(new HColumnDescriptor("address"));
   admin.createTable(tableDescriptor);
   System.out.println("end create table");
  } catch (MasterNotRunningException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (ZooKeeperConnectionException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
 }
 
 /**
  * Delete the existing table
  * @param configuration Configuration
  * @param tableName String,Table's name
  * */
 public static void dropTable(Configuration configuration,String tableName){
  HBaseAdmin admin;
  try {
   admin = new HBaseAdmin(configuration);
   if(admin.tableExists(tableName)){
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
    System.out.println(tableName+"delete success!");
   }else{
    System.out.println(tableName+"Table does not exist!");
   }
  } catch (MasterNotRunningException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (ZooKeeperConnectionException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
 
 /**
  * insert a data
  * @param configuration Configuration
  * @param tableName String,Table's name
  * */
 public static void addData(Configuration configuration,String tableName){
  HBaseAdmin admin;
  try {
   admin = new HBaseAdmin(configuration);
   if(admin.tableExists(tableName)){
    HTable table=new HTable(configuration, tableName);
    Put put=new Put(Bytes.toBytes("zhangsan"));
    put.add(Bytes.toBytes("info"), Bytes.toBytes("age"), Bytes.toBytes("28"));
    table.put(put);
    System.out.println("add success!");
   }else{
    System.out.println(tableName+"Table does not exist!");
   }
  } catch (MasterNotRunningException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (ZooKeeperConnectionException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
 
 /**
  * Delete a data
  * @param configuration Configuration
  * @param tableName String,Table's name
  * */
 public static void deleteDate(Configuration configuration,String tableName){
  HBaseAdmin admin;
  try {
   admin=new HBaseAdmin(configuration);
   if(admin.tableExists(tableName)){
    HTable table=new HTable(configuration, tableName);
    Delete delete=new Delete(Bytes.toBytes("zhangsan"));
    table.delete(delete);
    System.out.println("delete success!");
   }else{
    System.out.println("Table does not exist!");
   }
  } catch (MasterNotRunningException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (ZooKeeperConnectionException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
 

 /**
  * get a data
  * @param configuration Configuration
  * @param tableName String,Table's name
  * */
 public static void getData(Configuration configuration,String tableName){
  HTable table;
  try {
   table = new HTable(configuration, tableName);
   Get get=new Get(Bytes.toBytes("zhangsan"));
   Result result=table.get(get);
 
   for(Cell cell:result.rawCells()){   
    System.out.println("RowName:"+new String(CellUtil.cloneRow(cell))+" ");
    System.out.println("Timetamp:"+cell.getTimestamp()+" ");
    System.out.println("column Family:"+new String(CellUtil.cloneFamily(cell))+" ");
    System.out.println("row Name:"+new String(CellUtil.cloneQualifier(cell))+" ");
    System.out.println("value:"+new String(CellUtil.cloneValue(cell))+" ");
   }
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }
 
 /**
  * insert all data
  * @param configuration Configuration
  * @param tableName String,Table's name
  * */
 public static void getAllData(Configuration configuration,String tableName){
  HTable table;
  try {
   table=new HTable(configuration, tableName);
   Scan scan=new Scan();
   ResultScanner results=table.getScanner(scan);
   for(Result result:results){
    for(Cell cell:result.rawCells()){   
     System.out.println("RowName:"+new String(CellUtil.cloneRow(cell))+" ");
     System.out.println("Timetamp:"+cell.getTimestamp()+" ");
     System.out.println("column Family:"+new String(CellUtil.cloneFamily(cell))+" ");
     System.out.println("row Name:"+new String(CellUtil.cloneQualifier(cell))+" ");
     System.out.println("value:"+new String(CellUtil.cloneValue(cell))+" ");
    }
   }
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
    
 }
}